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Open Market Share Repurchase Program	3 Months Ended
Open Market Share Repurchase Program	Mar. 24, 2019
Equity [Abstract]
Open Market Share Repurchase Program	7. Open Market Share Repurchase Program During the first quarter of 2019, the Company repurchased and retired 33,549 shares of its common stock under its Board of Directors-approved open market share repurchase program for a total of approximately $8.1 million, or an average price of $242.74 per share. As of March 24, 2019, the Company had a total remaining authorized amount for share repurchases of approximately $150.6 million. During the first quarter of 2018, the Company repurchased and retired 448,008 shares of its common stock under its Board of Directors-approved open market share repurchase program for a total of approximately $101.1 million, or an average price of $225.63 per share.